The invention provides a manufacturing method of a display panel and the display panel. The method comprises the steps that a substrate is provided, wherein the substrate comprises a display area anda non-display area, a photoresist layer is formed on the substrate, a first photoresist reservation area and a second photoresist reservation area are formed on the photoresist layer through an exposure development process, the substrate on which a photoresist pattern is formed is coated with a light shielding material, and the light shielding material is subjected to exposure development to forma light shielding layer on the non-display area of the substrate, wherein the light shielding layer forms a first spacer on the first photoresist reservation area and forms a second spacer on the second photoresist reservation area. By means of the method, a photoresist material which needs to be removed in the manufacturing process is reserved, the utilization rate of the material is increased, the manufacturing process of the display panel is reduced accordingly, and the production efficiency is improved.